Not quite a direct answer, but there is (or used to be) a map you could buy of France which showed the location of all the main crags. Haven't seen it for a while, but you used to be able to get it in some service stations.

In reply to bengascoigne:
Saussois and Surgy are both near Auxerre, about an hour south of Paris. There are some good looking climbs there, and maybe some multi pitch at Saussois, but even 20 years ago it was very polished on the easier routes.

In reply to bengascoigne: There was a book called The Rock Climbing Guide to Europe, which had mapped crags across Europe, and gave basic info on each one, with a selection of routes.
We used it as a bible for when we went to out of the way places.